Publication detail

Organization of β-Adamantylmethyl-modified Polythiophenes determined by Self-Assembled Monolayers – A study of epitaxial effects

Cigánek, M. Farka, D. Veselý, D. Krajčovič, J.

Original Title

Organization of β-Adamantylmethyl-modified Polythiophenes determined by Self-Assembled Monolayers – A study of epitaxial effects

Type

abstract

Language

English

Original Abstract

The anisotropic charge transport in organic materials necessitates precise control over their self-assembly, especially in conductive polymers like poly(3,4-ethylenedioxythiophene) PEDOT. Achieving outstanding conductivity in PEDOT-based devices has involved various methods such as solution shearing, acid treatment, strong doping agents, self-doping, etc. These efforts have led to a conductivity record of 8 797 S cm-1. Recent approaches have succeeded even without added oxidants. The success of the PEDOT material is due to its ability to form stable, planar intra-molecular bonds, which suppress disorder and enhance 2D transport. Notably, high-performance organic semiconductors have been trending towards thinner forms, with nanowires formed on highly controlled surfaces achieving record conductivities. This has highlighted the significance of the epitaxial effects of substrates. Studies showed that using self-assembled monolayers (SAMs) with different head groups on gold surfaces could drastically change topographies and surface potentials. This work uses recently published poly(3-adamantylmethylthiophene) (PMAT) in two isolated fractions (dimer 2MAT and decamer 10MAT) to explore these effects, comparing its self-assembly on two different SAMs with distinct head groups during spin-coating. PMAT showed different self-assembly modes on bare gold Au(111), mica, and glass, suggesting varied interactions. The findings confirm the utility and potential of epitaxial effects and adamantyl substituents to enhance organic electronics, primarily through improved performance of the resulting electronic devices.

Keywords

PEDOT; adamantyl; conducting polymers; surface science; self-assembly

Authors

Cigánek, M.; Farka, D.; Veselý, D.; Krajčovič, J.

Released

23. 9. 2024

Publisher

ALMA MATER STUDIORUM - Università di Bologna

Location

Bologna, Italy

Pages from

12

Pages to

12

Pages count

1

URL

https://eventi.unibo.it/orbitaly2024/book-of-abstracts/book-of-poster.pdf/@@download/file/Poster_Contribution.pdf

BibTex

@misc{BUT194138,
  author="Cigánek, M. and Farka, D. and Veselý, D. and Krajčovič, J.",
  title="Organization of β-Adamantylmethyl-modified Polythiophenes determined by Self-Assembled Monolayers – A study of epitaxial effects",
  booktitle="Poster Contributions - ORBITALY 2024",
  year="2024",
  pages="12--12",
  publisher="ALMA MATER STUDIORUM - Università di Bologna",
  address="Bologna, Italy",
  url="https://eventi.unibo.it/orbitaly2024/book-of-abstracts/book-of-poster.pdf/@@download/file/Poster_Contribution.pdf",
  note="abstract"
}